Huztl 16100-Z8B-901 BB76A A Carburetor (Auto Choke) for Honda GCV160 GCV160LAO S3B NH1 GCV160LA1 S3B GCV160LA0 S3LB HRR2169VKA HRR216K9VKAA HRR216K10VKAA for Hus-qvarna 7021P HU700F Lawn Mower

What It Is

This is an aftermarket carburetor with an integrated auto-choke mechanism, designed to replace the OEM Honda 16100-Z8B-901 on GCV160 engines. It’s intended for push mowers, self-propelled mowers, and small utility engines that use the Honda GCV160 platform.

Fitment & Compatibility

• Primary fit: Honda GCV160, GCV160LAO, GCV160LA1, GCV160LA0, and S3B/S3LB/NH1 variants. Also fits Husqvarna 7021P and HU700F models.
• Check engine model number (stamped on the blower housing or valve cover) – must start with GCV160.
• OEM vs aftermarket: This is not a genuine Honda part; it’s a direct-replacement aftermarket unit. It may require minor adjustment to the auto-choke linkage or throttle cable on some deck sizes.
• Measure the mounting hole spacing (center-to-center on the two studs) – should be 60mm. If your original carb uses a different pattern, this won’t bolt up.
• Verify intake manifold gasket orientation – the new carb often comes with a gasket that may need trimming for some models (e.g., HRR2169VKA).

Key Things to Know

• Auto-choke tuning: The auto-choke is temperature-sensitive. If the engine starts and dies, or runs rich when cold, you may need to adjust the choke plate spring tension (bend the tab slightly).
• Installation difficulty: Moderate. Expect 30–60 minutes. You’ll need to remove the air filter housing, fuel line, and throttle cable. The auto-choke linkage can be fiddly.
• Common gotcha: The included fuel line may be slightly smaller than OEM – reuse your original line if it’s in good shape. Also, the carburetor bowl screw is often tight from the factory; use a proper screwdriver to avoid stripping.
• Quality variance: Some units have debris in the fuel passages. Flush with carb cleaner before installing to save headaches.

Should You Buy It

This is a solid budget option if your OEM Honda carb is leaking, clogged, or the auto-choke fails, and you’re comfortable with basic small-engine repair. It works best on standard GCV160 push mowers and Husqvarna 7021P/HU700F models. Skip it if you need a drop-in replacement with zero adjustment – spring for a genuine Honda carb instead.